In:
Land Degradation & Development, Wiley, Vol. 29, No. 1 ( 2018-01), p. 15-25
Abstract:
This study evaluated the ecosystem carbon (C) stock and sequestration potential for predominant land uses converted from forest in Northeast India to advance the scientific knowledge and minimize the anthropogenic C emissions from land use change (LUC). Field assessments were conducted on 6 predominant land uses including (a) natural forest (NF), (b) degraded forest (DF), (c) rubber ( Hevea brasiliensis ) plantation (RP), (d) Areca ( Areca catechu ) plantation (ArP), (e) pan ( Piper betle ) jhum (slash and mulching) agroforestry (PB), and (f) Imperata grassland (IG) of Northeast India to assess changes in ecosystem C stock with progressive and retrogressive LUC. Ecosystem C stock was the highest for NF (300.5 Mg ha −1 ) and the lowest under IG (110.4 Mg ha −1 ). The ecosystem C stock under PB and IG was 11% and 63%, respectively, lower than that under NF. In comparison with DF, the gain in ecosystem C was in the order PB (125%) 〉 RP (99%) 〉 ArP (4%). The ratio of soil organic carbon to ecosystem C stock was ~50% for NF, PB, and RP and that shifted to ~80% for ArP/DF/IG. The LUC and management of DF through PB and RP indicated the ecosystem C sequestration rate of 5 and 4 Mg ha −1 year −1 , respectively. Similarly, the ecosystem C sequestration rate was 0.5 and 4 Mg ha −1 year −1 , respectively, when IG was converted into ArP and RP. Therefore, restoration of degraded lands (viz., DF and IG) through RP and PB enhanced ecosystem C sequestration rate and reduced CO 2 emissions from LUC. Copyright © 2017 John Wiley & Sons, Ltd.
Type of Medium:
Online Resource
ISSN:
1085-3278
,
1099-145X
Language:
English
Publisher:
Wiley
Publication Date:
2018
detail.hit.zdb_id:
2021787-0
detail.hit.zdb_id:
1319202-4
SSG:
14
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